import 'package:flutter/material.dart';

//进度条
class LoadingContainer extends StatelessWidget {

  final Widget child;
  final bool isLoading;
  final bool cover;

  const LoadingContainer({Key key, @required this.isLoading, this.cover=false, @required this.child}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return !cover?!isLoading?child:_loadingView
    :Stack(
      children: <Widget>[child, isLoading ? _loadingView : null],
    );
  }

  Widget get _loadingView{
    return Center(
      child: CircularProgressIndicator(),
    );
  }

}